Compare Flomax vs. Rapaflo

Head-to-head comparisons of medication uses, side effects, ratings, and more.

Flomax
(tamsulosin)

Rapaflo
(silodosin)

Makes it easier to urinate. Flomax (Tamsulosin) is a first-choice treatment for enlarged prostate, and it's available as a generic. However, it can cause changes in your sex drive and can take a while to kick in.Coming soon.
Reviews & ratings
Filter group. All currently selected
Filter group. All currently selected
4.65Flomax
Reviews for Flomax
58%
of people (All ages) say Flomax is worth it
41%
say it works well
19%
say it's a big hassle
Have you used Flomax (tamsulosin)?
Worth itNot sureNot worth it

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Have you used Rapaflo (silodosin)?
Worth itNot sureNot worth it
Side effects
FlomaxRapaflo
  • Dizziness 5%
  • Inflammation inside the nose 5%
  • Infection 1%
  • Muscle weakness 2%
  • Abnormal ejaculation 8%
  • Back pain 1%
  • Sore throat 1%
  • Diarrhea 1%
More Flomax side effects »

We haven’t found good data for Rapaflo side effects.

FDA side effect reports for Rapaflo »
How it works
FlomaxRapaflo
Flomax (Tamsulosin) is an alpha-1 blocker. It specifically targets and relaxes muscles in your prostate, which makes it easier to urinate.Coming soon.
Type of medication
FlomaxRapaflo
Prescription only
Available as
FlomaxRapaflo
  • Pill
  • Pill
Used for
FlomaxRapaflo
  • Benign Prostatic Hyperplasia
Risk factors for serious side effects
FlomaxRapaflo
  • Taking medications for high blood pressure
  • Cataract or glaucoma surgery
  • Alcohol use
  • Heavy exercise
  • Hot weather
Detailed Flomax (tamsulosin) risks & warnings »
    Coming soon.
    Pregnancy

    Research studies with animals haven’t found a risk to unborn babies, but it hasn’t been properly studied in humans.

    Research studies with animals haven’t found a risk to unborn babies, but it hasn’t been properly studied in humans.

    Pain
    FlomaxRapaflo
    • Can cause dizziness, muscle pain, headache and stuffy/runny nose.
    No pain related info.
    Upsides and benefits
    FlomaxRapaflo
    • First-choice medication for relieving the symptoms of an enlarged prostate.
    • Helps make urinating easier.
    • Available as a generic medication.
    • Also available in a combination form with another medication to treat more severe symptoms of an enlarged prostate.
    • Since it works only on the muscles around the prostate, it has fewer blood pressure and heart-related side effects than other medicines in the same class.
    Coming soon
    Downsides and risks
    FlomaxRapaflo
    • Has to be taken the same time every day.
    • It can take up to one month to see the full effects of the medication.
    • Can reduce sex drive.
    • Flomax (Tamsulosin) can't be stopped suddenly, so you'll need to talk to your doctor about how to stop taking it safely.
    • It doesn't shrink the size of the prostate.
    Coming soon
    Tips from our pharmacists for people taking the medication
    FlomaxRapaflo
    • Take this 30 minutes after the same meal every day.
    • Can cause dizziness, muscle pain, headache and stuffy/runny nose.
    • Can cause changes in sex drive.
    • Don't stop taking this medication suddenly without talking to your doctor.
    Coming soon
    Learn more
    More about FlomaxSide effectsReviews & ratingsAlternativesFDA package insert
    Have you used Flomax (tamsulosin)?
    Worth itNot sureNot worth it
    More about RapafloSide effectsReviews & ratingsFDA package insert
    Have you used Rapaflo (silodosin)?
    Worth itNot sureNot worth it